02705naa a2200397 a 450000100080000000500110000800800410001910000190006024501870007926000090026652015210027565000280179665000210182465000220184565000250186765000150189265000270190765000200193465000210195465000160197565000260199165000090201765300250202665300150205165300160206665300220208265300180210465300190212265300110214165300160215265300220216865300200219070000170221070000180222777300620224512787372024-05-28       1990    bl uuuu     u00u1 u    #d1 aBOUGHER, N. L.  aGrowth and phosphorus acquisition of karri (Eucalyptus diversicolor F. Muell.) seedling inoculated with ectomycorrhizal fungi in relation to phosphorus supply.h[electronic resource]  c1990  aGrowth and phosphorus acquisition of pot-grown seedlings of E. diversicolor were examined following inoculation with four ectomycorrhizal fungi - Descolea maculata (two isolates), Pisolithus tinctorius, and Laccaria laccata. Seedlings were raised in steam-sterilized sand to which 13 rates of phosphorus (0-100 mg P/kg soil) were applied. P. tinctorius produced no plant growth response. L. laccata produced the largest growth response. Responses were greatest at low rates of application of P to soil. There was no effect of the fungi on growth with P application above 28 mg P/kg soil. A threshold effect (no increase in growth with increasing additions of P) characteristic of non-mycorrhizal seedlings was eliminated by mycorrhizal infection. Mycorrhizal inoculation increased P content of plant tissues with sub-optimal P supply. The effect of mycorrhizas on seedling P status diminished with increasing soil P. Frequency of infection for all fungi was low in soils with no additional P, and greatest with the addition of 2 mg P/kg soil (L. laccata and D. maculata isolate A), or 4 mg P/kg soil (D. maculata isolate B). Infection was reduced with increasing soil P, and not evident at 36 mg P/kg soil or higher. L. laccata had higher infection frequency and mycorrhizal root length at all rates of soil P than the D. maculata isolates. Two fungi produced basidiomes. This occurred with soil P application ranging from 4 to 20 mg P/kg soil for D. maculata (isolate B), and at 4 to 28 mg P/kg soil for L. laccata.  aEucalyptus diversicolor  aLaccaria laccata  amycorrhizal fungi  anutrition physiology  aphosphorus  aphosphorus fertilizers  aplant nutrition  asoil inoculation  aCrescimento  aPisolithus Tinctorius  aSolo  aAquisicao de fosforo  aBasidiomes  aBroadleaves  aDescolea maculata  aEctomicorriza  aEctomycorrhiza  aGrowth  aMycorrhizas  aPhosphorus uptake  aSoil phosphorus1 aGROVE, T. S.1 aMALAJCZUK, N.  tNew Phytologist, Cambridgegv. 114, n. 1, p. 77-86, 1990.